현재 목재를 이용한 경골, 중골목구조 건축물의 수요가 계속 증가하면서 국산목재와 수입목재가 많이 사용되고 있음에도 불구하고 국내에서 사용될 때 수입 시 제시된 등급 규정 및 허용응력을 만족하는지를 현장에서 확인할 수 있는 절차가 없다. 국산목재를 사용할 경우도 마찬가지로 허용응력이나 등급에 대한 인식이 부족하여 일부 대목장의 경험에 의존하는 것이 일반적이다. 본 연구에서는 목조건축물의 주요 부재인 보부재에서 목재의 허용응력 중 중요한 요소인 휨응력과 비파괴시험의 상관성을 분석하여 비파괴시험을 통해 휨강도 추정의 가능성을 검토하는 ...
현재 목재를 이용한 경골, 중골목구조 건축물의 수요가 계속 증가하면서 국산목재와 수입목재가 많이 사용되고 있음에도 불구하고 국내에서 사용될 때 수입 시 제시된 등급 규정 및 허용응력을 만족하는지를 현장에서 확인할 수 있는 절차가 없다. 국산목재를 사용할 경우도 마찬가지로 허용응력이나 등급에 대한 인식이 부족하여 일부 대목장의 경험에 의존하는 것이 일반적이다. 본 연구에서는 목조건축물의 주요 부재인 보부재에서 목재의 허용응력 중 중요한 요소인 휨응력과 비파괴시험의 상관성을 분석하여 비파괴시험을 통해 휨강도 추정의 가능성을 검토하는 것을 목적으로 실험을 진행하였다.
현재 목재를 이용한 경골, 중골목구조 건축물의 수요가 계속 증가하면서 국산목재와 수입목재가 많이 사용되고 있음에도 불구하고 국내에서 사용될 때 수입 시 제시된 등급 규정 및 허용응력을 만족하는지를 현장에서 확인할 수 있는 절차가 없다. 국산목재를 사용할 경우도 마찬가지로 허용응력이나 등급에 대한 인식이 부족하여 일부 대목장의 경험에 의존하는 것이 일반적이다. 본 연구에서는 목조건축물의 주요 부재인 보부재에서 목재의 허용응력 중 중요한 요소인 휨응력과 비파괴시험의 상관성을 분석하여 비파괴시험을 통해 휨강도 추정의 가능성을 검토하는 것을 목적으로 실험을 진행하였다.
Using the current timber, while the demand for inflexibility wood or middle-inflexibility structure buildings continues to increase despite domestic wood and imported wood is used a lot in the field that there is no procedure for checking imports to satisfy domestic use regulations, and tolerance ra...
Using the current timber, while the demand for inflexibility wood or middle-inflexibility structure buildings continues to increase despite domestic wood and imported wood is used a lot in the field that there is no procedure for checking imports to satisfy domestic use regulations, and tolerance ratings. If you use wood of Korea is generally also a lack of awareness about tolerance and rating depends on the experience of some skillful carpenter. Therefore, In this study, the experiment aims to examine the possibility of flexural strength estimated by the main subsidiary materials of beams of wood tongue is a major factor of power usage bending capability and analysis of non-destructive tests in Nondestructive testing the relevance of the wooden structure . And the test subject was conducted by douglas fir and hemlock selected as the most used of japanese larch and imported wood mainly used in Korea . Test methods for the study were analyzed after the experiment, proceed to one of the flexural strength test of the experiment were destroyed and pilodyn wood tester of the non-destructive testing. It is drawn to the following conclusions. 1. Non-destructive experimental results using a pilodyn wood tester. 1) When the inclination angle of the pressing force based on the grain wood inclination angle, the grain wood inclination angle is the penetration depth of the lock 90degree can be tilted from 0degree was confirmed from being lowered . 2) The more when the timber based on the number of rings within rings count is more intrusive check that depth is decreased. 3) When based on the type of wood , but a notable difference is the highest larch , hemlock , it is confirmed that the net is lowered by douglas fir. 2. Flexural experimental results using a universal testing machine. 1) The more sure when the inclination angle of the pressing force based on the grain wood inclination angle, the grain wood inclination angle is inclined at 0 degrees to 90 degrees the stress is lowered. 2) Verify that the lot number of rings within the timber to be higher when the stress is increased by the number of rings. 3) When based on the type of tree was the highest in Douglas fir , hemlock , japanese larch order to ensure that lowered . 3. The grain wood inclination angle of the pressing force direction , the number of rings, it was confirmed that the type of wood are three kinds of experimental parameters affecting the correlation between the penetration depth and stress. And a stress based on the penetration depth is larger was confirmed through experiments that the inverse relationship to decrease.
Using the current timber, while the demand for inflexibility wood or middle-inflexibility structure buildings continues to increase despite domestic wood and imported wood is used a lot in the field that there is no procedure for checking imports to satisfy domestic use regulations, and tolerance ratings. If you use wood of Korea is generally also a lack of awareness about tolerance and rating depends on the experience of some skillful carpenter. Therefore, In this study, the experiment aims to examine the possibility of flexural strength estimated by the main subsidiary materials of beams of wood tongue is a major factor of power usage bending capability and analysis of non-destructive tests in Nondestructive testing the relevance of the wooden structure . And the test subject was conducted by douglas fir and hemlock selected as the most used of japanese larch and imported wood mainly used in Korea . Test methods for the study were analyzed after the experiment, proceed to one of the flexural strength test of the experiment were destroyed and pilodyn wood tester of the non-destructive testing. It is drawn to the following conclusions. 1. Non-destructive experimental results using a pilodyn wood tester. 1) When the inclination angle of the pressing force based on the grain wood inclination angle, the grain wood inclination angle is the penetration depth of the lock 90degree can be tilted from 0degree was confirmed from being lowered . 2) The more when the timber based on the number of rings within rings count is more intrusive check that depth is decreased. 3) When based on the type of wood , but a notable difference is the highest larch , hemlock , it is confirmed that the net is lowered by douglas fir. 2. Flexural experimental results using a universal testing machine. 1) The more sure when the inclination angle of the pressing force based on the grain wood inclination angle, the grain wood inclination angle is inclined at 0 degrees to 90 degrees the stress is lowered. 2) Verify that the lot number of rings within the timber to be higher when the stress is increased by the number of rings. 3) When based on the type of tree was the highest in Douglas fir , hemlock , japanese larch order to ensure that lowered . 3. The grain wood inclination angle of the pressing force direction , the number of rings, it was confirmed that the type of wood are three kinds of experimental parameters affecting the correlation between the penetration depth and stress. And a stress based on the penetration depth is larger was confirmed through experiments that the inverse relationship to decrease.
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